var elements_arr = new Array("eau", "air", "feu", "terre");

function setElement(element_name)
{
	for(var i=0;i<elements_arr.length;i++)
	{
		document.getElementById('elements-'+elements_arr[i]).style.visibility  = ((elements_arr[i] == element_name) ? 'visible' : 'hidden');
		var src = document.getElementById('tab-'+elements_arr[i]).src;
		src=src.substring(0, src.length-5);
		document.getElementById('tab-'+elements_arr[i]).src = src+((elements_arr[i] == element_name) ? '1' : '0')+".png";
	}
}